INSTALLATION INSTRUCTIONS - Lennox

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Page 103/06*2P0306*505,181M*P505181M* 2006 Lennox Industries , Texas, USARETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCEINSTALLATIONINSTRUCTIONSG40UH(X ) SeriesGAS FURNACE505,181M03/2006Supersedes 505,011MTable of ContentsUnit Dimensions2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G40UH(X) Parts Arrangement3. . . . . . . . . . . . . . . . . . . . . G40UH(X) Gas Furnace4. . . . . . . . . . . . . . . . . . . . . . . . . . Shipping and Packing List4. . . . . . . . . . . . . . . . . . . . . . . . Safety Information4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Combustion, Dilution & Ventilation Air5. . . . . . . . . . . . . . Setting Equipment8.

B149 Natural Gas and Propane Installation Codes, local plumbing or waste water codes and other applicable local codes. Adequate clearance must be made around the air open-ings into the vestibule area. In order to ensure proper unit operation, combustion and ventilation air supply must be provided according to the current National Fuel Gas Code

  Instructions, Natural, Propane, Lennox